This content is not included in
your SAE MOBILUS subscription, or you are not logged in.
Multi-Component Quantitative PLIF: Robust Engineering Measurements of Cyclic Variation in a Firing Spray-Guided Gasoline Direct Injection Engine
Technical Paper
2008-01-1073
ISSN: 0148-7191, e-ISSN: 2688-3627
Annotation ability available
Sector:
Language:
English
Abstract
Planar Laser-Induced Fluorescence has been widely accepted and applied to measurements of fuel concentration distributions in IC engines. The need for such measurements has increased with the introduction of Direct Injection (DI) gasoline engines, where it is critical to understand the influence of mixture inhomogeneity on ignition and subsequent combustion, and in particular the implications for cyclic variability.
The apparent simplicity of PLIF has led to misunderstanding of the technique when applied to quantitative measurements of fuel distributions. This paper presents a series of engineering methods for optimizing, calibrating and referencing, which together demonstrate a quantitative measure of fuel concentration with an absolute accuracy of 10%.
PLIF is widely used with single component fuels as carriers for the fluorescent tracers. This paper shows that this method inadequately describes a real fuel spray, and presents instead a method that uses a fully fractionated multi-component fuel for PLIF diagnostics.
A series of measurements is presented of fuel distribution, early injection DI homogeneity and cyclic variation of injector plumes in a DI single cylinder optical research engine.
Recommended Content
Authors
- Ben Williams - University of Oxford
- Paul Ewart - University of Oxford
- Richard Stone - University of Oxford
- Hongrui Ma - Shell Global Solutions (UK) Ltd
- Harold Walmsley - Shell Global Solutions (UK) Ltd
- Roger Cracknell - Shell Global Solutions (UK) Ltd
- Robert Stevens - Jaguar Cars Ltd
- David Richardson - Jaguar Cars Ltd
- Jun Qiao - Jaguar Cars Ltd
- Stan Wallace - Jaguar Cars Ltd
Topic
Citation
Williams, B., Ewart, P., Stone, R., Ma, H. et al., "Multi-Component Quantitative PLIF: Robust Engineering Measurements of Cyclic Variation in a Firing Spray-Guided Gasoline Direct Injection Engine," SAE Technical Paper 2008-01-1073, 2008, https://doi.org/10.4271/2008-01-1073.Also In
Combustion and Flow Diagnostics and Fundamental Advances inThermal and Fluid Sciences, 2008
Number: SP-2178; Published: 2008-04-14
Number: SP-2178; Published: 2008-04-14
References
- van Romunde Z. Aleiferis P. G. “Effect of Fuel Properties on Spray Development from a Multi-Hole DISI Engine Injector,” Society of Automotive Engineers 2007-01-4032 2007
- Eckbreth A. C. Laser diagnostics for combustion temperature and species 2nd Amsterdam, The Netherlands Gordon and Breach Science Publishers 1996
- Schulz C. Sick V. “Tracer-LIF diagnostics: quantitative measurement of fuel concentration, temperature and fuel/air ratio in practical combustion systems,” Progress In Energy And Combustion Science 31 75 121 2005
- Stevens R. E. Ma H. Stone C. R. Walmsley H. L. Cracknell R. “On planar laser-induced fluorescence with multi-component fuel and tracer design for quantitative determination of fuel concentration in internal combustion engines,” Proc. IMechE Part D 221 713 2007
- de Sercey G. Heikal M. Gold M. Begg S. Wood R. Awcock G. Laguitton O. “On the use of laser-induced fluorescence for the measurement of in-cylinder air-fuel ratios,” Proceedings Of The Institution Of Mechanical Engineers Part C- Journal Of Mechanical Engineering Science 216 1017 1029 2002
- VanDerWege B. A. Hochgreb S. “Effects of Fuel Volatility and Operating Conditions on Fuel Sprays in DISI Engines,” Society of Automotive Engineers 2000-01-0535 2000
- Martinez R. D. Buitrago A. A. Howell N. W. Hearn C. H. Joens J. A. “The near UV Absorption-Spectra of Several Aliphatic-Aldehydes and Ketones at 300-K,” Atmospheric Environment Part a-General Topics 26 785 792 1992
- Koban W. Koch J. D. Hanson R. K. Schulz C. “Toluene LIF at elevated temperatures: implications for fuel-air ratio measurements,” Applied Physics B-Lasers And Optics 80 147 150 2005
- Frieden D. Sick V. Gronki J. Schulz C. “Quantitative oxygen imaging in an engine,” Applied Physics B-Lasers And Optics 75 137 141 2002
- Berlman I. B. Handbook of fluorescence spectra of aromatic molecules 2d New York Academic Press 1971
- Koch J. D. Hanson R. K. “Temperature and excitation wavelength dependencies of 3- pentanone absorption and fluorescence for PLIF applications,” Applied Physics B-Lasers and Optics 76 319 324 2003
- Koban W. Koch J. D. Hanson R. K. Schulz C. “Absorption and fluorescence of toluene vapor at elevated temperatures,” Physical Chemistry Chemical Physics 6 2940 2945 2004
- Wermuth N. Sick V. “Absorption and fluorescence data of acetone, 3-pentanone, biacetyl, and toluene at engine-specific combinations of temperature and pressure” Society of Automotive Engineers 2005-01-2090 2005
- Koch J. D. Hanson R. K. Koban W. Schulz C. “Rayleigh-calibrated fluorescence quantum yield measurements of acetone and 3-pentanone,” Applied Optics 43 5901 5910 2004